Move enter to servant package

Author: Amar

servant-client/src/Servant/Client.hs

@@ -43,6 +43,7 @@ import           Servant.Client.Experimental.Auth
 import           Servant.Common.BaseUrl
 import           Servant.Common.BasicAuth
 import           Servant.Common.Req
+import           Servant.Utils.Enter
 
 -- * Accessing APIs as a Client
 

servant-server/servant-server.cabal

@@ -40,7 +40,6 @@ library
     Servant.Server.Internal
     Servant.Server.Internal.BasicAuth
     Servant.Server.Internal.Context
-    Servant.Server.Internal.Enter
     Servant.Server.Internal.Router
     Servant.Server.Internal.RoutingApplication
     Servant.Server.Internal.ServantErr
@@ -101,7 +100,6 @@ test-suite spec
   other-modules:
       Servant.Server.ErrorSpec
       Servant.Server.Internal.ContextSpec
-      Servant.Server.Internal.EnterSpec
       Servant.ServerSpec
       Servant.Server.UsingContextSpec
       Servant.Server.UsingContextSpec.TestCombinators

servant-server/src/Servant/Server.hs

@@ -101,7 +101,7 @@ import           Data.Proxy                    (Proxy)
 import           Data.Text                     (Text)
 import           Network.Wai                   (Application)
 import           Servant.Server.Internal
-import           Servant.Server.Internal.Enter
+import           Servant.Utils.Enter
 
 
 -- * Implementing Servers

servant-server/test/Servant/Server/Internal/EnterSpec.hs renamed to servant-server/test/Servant/ArbitraryMonadServerSpec.hs

@@ -1,7 +1,7 @@
 {-# LANGUAGE DataKinds         #-}
 {-# LANGUAGE OverloadedStrings #-}
 {-# LANGUAGE TypeOperators     #-}
-module Servant.Server.Internal.EnterSpec where
+module Servant.ArbitraryMonadServerSpec where
 
 import qualified Control.Category           as C
 import           Control.Monad.Reader

servant/servant.cabal

@@ -47,6 +47,7 @@ library
     Servant.API.Verbs
     Servant.API.WithNamedContext
     Servant.Utils.Links
+    Servant.Utils.Enter
   build-depends:
       base >= 4.7 && < 4.9
     , base-compat >= 0.9
@@ -58,6 +59,8 @@ library
     , http-api-data >= 0.1  && < 0.3
     , http-media >= 0.4 && < 0.7
     , http-types >= 0.8 && < 0.10
+    , mtl >= 2 && < 3
+    , mmorph >= 1
     , text >= 1 && < 2
     , string-conversions >= 0.3 && < 0.5
     , network-uri >= 2.6

servant-server/src/Servant/Server/Internal/Enter.hs renamed to servant/src/Servant/Utils/Enter.hs

@@ -8,7 +8,7 @@
 {-# LANGUAGE TypeFamilies           #-}
 {-# LANGUAGE TypeOperators          #-}
 {-# LANGUAGE UndecidableInstances   #-}
-module Servant.Server.Internal.Enter where
+module Servant.Utils.Enter where
 
 import qualified Control.Category            as C
 #if MIN_VERSION_mtl(2,2,1)